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Date: Thu, 25 Jul 2013 14:53:19 +0100
From: Mark Brown <broonie@...nel.org>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
Grant Likely <grant.likely@...aro.org>,
Guennadi Liakhovetski <g.liakhovetski@....de>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: How to create IRQ mappings in a GPIO driver that doesn't control
its IRQ domain ?
On Thu, Jul 25, 2013 at 03:21:35PM +0200, Linus Walleij wrote:
> On Thu, Jul 25, 2013 at 3:15 PM, Mark Brown <broonie@...nel.org> wrote:
> > Are the interrupts in a contiguous block in the controller so you can
> > just pass around the controller and a base number?
> That works with platform data and in-kernel structures, but AFAICT
> device tree has no such "bulk" concept but expects you to list
> each and every line individually in cases like this.
It works fine with domains as well - the domains all have a hwirq number
which is local to the domain context and doesn't correspond to a Linux
interrupt number. If you can say "the X interrupts in this domain
starting at Y correspond to these X GPIOs" then you should be able to
cope. Hopefully.
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